
I accused a student of something similar...
He denied it just like the OP... but admitted to part of the stuff... (ironically, it was games as well)
Had a print out of the time he was logged on...
printout of the activity on that computer...
student figured out he was stupid and finally admitted to it (in the face of overwhelming evidence)
mailed a copy of the evidence to the mom... let her deal with it.
If the OP thinks that someone like an IT director can't figure out the truth, then the OP is an idiot. Therefore, I question why the OP was looking at gay flying porn. (hopefully, it was just Yatta)